It frequently is known as mail merge.
merging
The general term is a mail merge. The main document is merged with names and addresses saved in a database. The main document will become more personal by showing individual names (Dear Mr Jones, instead of Dear Sir) and individual addresses.
Source Document
A placeholder in the main document that marks where a value is inserted from a source.
The Data Source file can be a text document, a table in word, a table in a database or a file in Excel where data has been laid out in a tabular format. In all cases, you will need headings to indicate the field titles that are to be used. Then the data can be picked up in the Mail Merge process.
Data column
Merge Field.
Requirements document
It can be a data file or source data file. It is used in the mail merge process.
Profiling
A document is the result of a process in a flowchart. Data can be used as an input and output in a flowchart. Also data is more specific(e.g. ordernumber) and a document is more an overview of data.
Document data regarding supportability (Data Repository)
A main document, which can be an ordinary Word document, such as a letter, or it could from a template.